Her sobbing mother told the inquest her daughter made herself an online persona in her desperation to be loved as someone else.

“She made up this outrageous fantasy... but the lies spiralled out of control," Mrs Wilson told the hearing.

“I asked her why she didn’t want to be Tallulah and she just said I didn’t understand.

“She said she had 18,000 people who loved her for who she was online.

“She told me she was finally happy, she didn’t think she could have friends in the real world.”

The North London hearing was told Tallulah had previously tried to kill herself.

She was hit by a train at London’s St Pancras station in October 2012.

Her death came just four months after another budding ballet dancer was killed in the same way in ­Beckenham, South London.

Rosie Whitaker, also 15, had attended the same dance school as Tallulah.

The coroner was told the youngster had been bullied at St Marylebone School, in Central London.

Mrs Wilson said: “Some of the girls in that school were horrible . They used Tallulah as an emotional punch bag.

A fellow schoolgirl who Tallulah met through Flickr told her hearing that Tallulah's blog posts on Tumblr had "hinted at suicide" and had become increasingly bleak.

"It was almost like she was using it as a diary. But the way she was posting about self-harm, it was more like a competition with the other people who are following or you follow - who can get the best scar or things like that.

"It's quite sick and twisted, really. Who has got the most problems, things like that."

The inquest continues.

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